import axios from 'axios'
import { Notification, MessageBox, Message, Loading } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { tansParams, blobValidate } from "@/utils/ruoyi";
import cache from '@/plugins/cache'
import { saveAs } from 'file-saver'
import { SM4, SM3, SM2 } from 'gm-crypto';
let downloadLoadingInstance;
// 是否显示重新登录
export let isRelogin = { show: false };

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'

// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  timeout: 200000
})


// request拦截器
service.interceptors.request.use(config => {

  const sm2 = require('sm-crypto').sm2
  const sm3 = require('sm-crypto').sm3
  const uuid = require('uuid');
  const uniqueId = uuid.v4();
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  // 是否需要防止数据重复提交
  const isRepeatSubmit = (config.headers || {}).repeatSubmit === false

  //用来验证数据完整性


  if (getToken() && !isToken) {
    config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改

    //

  }
  //时间
if(!config.url.includes("getPublicKey")){
  //config.headers['url'] = config.url
  //==============>
  const cipherMode = 1;// 1 - C1C3C2，0 - C1C2C3，默认为1
  var publicKey = cache.session.get("pub")// process.env.VUE_APP_JM
  //《3》
     //需要生成仅一此有效的字符串，这里用时间戳代替。
  /*console.log(new Date())*/
  let time = new Date().getTime()

  // 《4》  得到uid
  var uid = cache.session.get("uid")
  //config.headers['uid'] = uid
  var nonce_client = uniqueId
  config.headers['nonceclient'] = nonce_client
  //console.log("生成随机的nonce=====================================?", nonce_client )
  //config.headers['content'] = sm2.doEncrypt((time+","+uid), publicKey, cipherMode);
  //console.log("time shi  " ,time)
  //console.log("timestamp shi  " + cache.session.get("time"))
  var timestamp = (cache.session.get("time")-0) + (time -0);
  /*console.log(" Δtime的时间 是 ==》 ",cache.session.get("time")-0)
  console.log("前端当前时间+ Δtime的时间 是 ==》 ",timestamp)
*/

  //< 5 > sign_client=hash(timestamp+nonce_client+uid)

  //var sign_client=hash(timestamp+nonce_client+uid)

  //console.log("看看生成的sign_client",sign_client)
  const hash = sm3(timestamp+","+nonce_client+","+uid);
  //console.log("加密之前的三格值 {} {} {}",time+":"+nonce_client+":"+uid);
  //《6》 hash
  //console.log("hash值   ",hash)
  config.headers['hash'] = hash
  config.headers['time'] = timestamp
  //加密后的hash值
  //《6》
  //var co = SM3((config.data+cache.session.get("uid")))
  // console.log("当前的configdata",config.data)
  // console.log("当前的url",config.url)


  //console.log("开始重写数据完整性校验 1   {}" ,JSON.stringify(config.data));

  //测试，用来验证前后端对象  是否相同

  var data = JSON.stringify(config.data)
  if( data === undefined || data === '{}'){
    data = "";
  }

  const wzxdata = sm3(data+","+uid+","+timestamp);
  //console.log("wzxdata 的值 ",wzxdata)
  config.headers['wzxdata'] = wzxdata;
  config.headers['wzxtime'] = timestamp;

}

  if (config.method === 'get' && config.params) {
    let url = config.url + '?' + tansParams(config.params);
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {

    const requestObj = {
      url: config.url,
      data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
      time: new Date().getTime()
    }
    const sessionObj = cache.session.getJSON('sessionObj')

    //console.log("请求的数据是",sessionObj.data);






    if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
      cache.session.setJSON('sessionObj', requestObj)
    } else {
      const s_url = sessionObj.url;                  // 请求地址
      const s_data = sessionObj.data;                // 请求数据
      const s_time = sessionObj.time;                // 请求时间
      const interval = 60000;                         // 间隔时间(ms)，小于此时间视为重复提交
      if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
        // const message = '数据正在处理，请勿重复提交';
        // console.warn(`[${s_url}]: ` + message)
        // return Promise.reject(new Error(message))
      } else {
        cache.session.setJSON('sessionObj', requestObj)
      }
    }

    //console.log("当前的登陆",config.url)
    if(config.data !=null && config.data != undefined && config.method === 'post'){

      const sm2 = require('sm-crypto').sm2
      const cipherMode = 1;// 1 - C1C3C2，0 - C1C2C3，默认为1
      var publicKey =  cache.session.get("pub")//process.env.VUE_APP_JM

      //var zz = sm2.doEncrypt(JSON.stringify(config.data), publicKey, cipherMode);

      //config.headers['zz'] = zz
    }
  }
  return config
}, error => {
    // console.log(error)
    Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    // 二进制数据则直接返回
    if (res.request.responseType ===  'blob' || res.request.responseType ===  'arraybuffer') {
      return res.data
    }
    if (code === 401) {
      if (!isRelogin.show) {
        isRelogin.show = true;
        MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', { confirmButtonText: '重新登录', cancelButtonText: '取消', type: 'warning' }).then(() => {
          isRelogin.show = false;
          store.dispatch('LogOut').then(() => {
            location.href = '/index';
          })
      }).catch(() => {
        isRelogin.show = false;
      });
    }
      return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
    } else if (code === 500) {
      Message({ message: msg, type: 'error' })
      return Promise.reject(new Error(msg))
    } else if (code === 601) {
      Message({ message: msg, type: 'warning' })
      return Promise.reject('error')
    } else if (code !== 200) {
      Notification.error({ title: msg })
      return Promise.reject('error')
    } else {
      return res.data
    }
  },
  error => {
    // console.log('err' + error)
    let { message } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    Message({ message: message, type: 'error', duration: 5 * 1000 })
    return Promise.reject(error)
  }
)

function doSM3(psw) {
  const sm3 = require('sm-crypto').sm3
  return  sm3(psw)
}


// 通用下载方法
export function download(url, params, filename, config) {
  downloadLoadingInstance = Loading.service({ text: "正在下载数据，请稍候", spinner: "el-icon-loading", background: "rgba(0, 0, 0, 0.7)", })
  return service.post(url, params, {
    transformRequest: [(params) => { return tansParams(params) }],
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    responseType: 'blob',
    ...config
  }).then(async (data) => {
    const isBlob = blobValidate(data);
    if (isBlob) {
      const blob = new Blob([data])
      saveAs(blob, filename)
    } else {
      const resText = await data.text();
      const rspObj = JSON.parse(resText);
      const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default']
      Message.error(errMsg);
    }
    downloadLoadingInstance.close();
  }).catch((r) => {
    //console.error(r)
    Message.error('下载文件出现错误，请联系管理员！')
    downloadLoadingInstance.close();
  })
}

export default service
